The Ruby on Rails Tutorial for Rails 4.0 final

I’ve just updated the Ruby on Rails Tutorial book to use the recently released Rails 4.0 final . I’ll give people a chance to look at it for a week or two and then switch it over to the default at railstutorial.org . I also plan to produce a supplementary screencast on Rails 4.0, updating the book’s sample app and covering some of the relevant diffs with Rails 3.2. Within a few weeks, I expect to release the supplementary screencast and ebook of the 4.0 version as a standalone product, available at a large discount to current customers. Once I feel the changes in Rails justify the effort (probably later this year), I plan to produce a full new 3rd edition and a new screencast series. These will also be available at a discount to current customers. The full 3rd edition will include everything in the current version, as well as some optional updates to the RSpec syntax for i...